Derrick



(No Model.)

W. A. ROSS.

DERRICK. No. 498,816. Patented June 6,1893.

NINE/V701? ATTORNEY.

UNITED STATES PATENT OFFICE.

WILLIAM A. ROSS, OF MARYVILLE, MISSOURI.

DERRICK.

SPECIFICATION forming part of Letters Patent No. 498,816, dated June 6,1893. Application filed January 24,1893. Serial No. 459,576. (No model.)

To all whom it may concern:

Be it known that I, WILLIAM A. ROSS, a citizen of the United States,residing at Maryville, in the county of Nodaway and State of Missouri,have invented certain new and useful Improvements inTransformer-Derricks;

and I do hereby declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilledin theart to which it appertains to make and use the same, reference being hadto the accompanying drawings, and to the letters of reference markedthereon, which form a part of this specification.

My invention relates to improvements in transformer derricks; and theobject of the invention is to providea light, and strong derrick,adapted to be attached to any electric light pole and used to support ablock and tackle by which a transformer can be hoisted to the desiredelevation and held there until it is securely fastened to the pole.

With these ends in view my invention consists of an upright bar orstandard provided with means for attachment to a pole and having alaterally projecting arm adapted to support a block and tackle designedto be used -to hoist a transformer into position on the pole.

My invention further consists in the pecu' liar construction andarrangement of parts as will be hereinafter more fully pointed out andclaimed.

:In the accompanying drawingsz-Figure 1 is a perspective view of theupper portion of an electric light pole showing my improved derrickattached thereto; and Fig. 2 is adetail detached view of the derrick.

Like letters of reference denote corresponding parts in both figures ofthe drawings, referring to which:

A designates an electric light support or pole and on said pole issecured a block or support, B, designed to support a transformingdevice.

My improved derrick consists of an upright bar or standard, 0, which isprovided on one face with any desired number of projecting spurs, D,designed to enter the body of the pole, A, and maintain the bar, 0, inposition thereon. The bar or standard, 0, is further connected to thepole, A, by means of straps or bands, E, which extend through guideloopsor eyes F, preferably welded to the outer face of the bar, 0, saidstraps or bands being adapted to encircle the pole, A, and have theirends connected by suitable buckles. The upper portion of the bar, C, isbent to form a laterally projecting arm, G, which extends across theupper end of the pole, A, and in said arm, G, preferably near the outerend thereof, is formed an eye, H, designed to receive a hook attached toa block and tackle which is intended to be used to hoist the transformerinto proper position to enable it to be securely attached to the block,B, and pole, A.

At a point about midway of its length, as at, I, the bar or standard, 0,is bent or twisted so that the portion above said point lies at rightangles to the portion below said. point. A short distance above thetwist, I, one end of a horizontally extending bar or arm, K, is firmlyattached to the bar, 0, and at its outer end said horizontal arm isprovided with a depending foot, L, which is shaped so as to receive andfit snugly over the upper end of the pole, A. The horizontallyprojecting arm, K, and upright, C, are further connected by an inclinedbrace bar, M, the ends of which are firmly united to said upright andhorizontally extending arm by any suitable means;

The laterally projecting arm, G, of my improved derrick may, as shown inthe drawings, be formed integral with the upright bar or standard, 0, ormay be made separate therefrom and firmlyattached thereto by anysuitable and desirable means.

The operation of my invention will be readily understood and itsadvantages appreciated by those'skilled in the art.

Among the advantages may be mentioned its simplicity and lightness thusenabling it to be readily transferred from place to place; and the easeand rapidity with which it can be secured in place on and removed from apole after the transformer shall have been secured in place.

The derrick although light is very strong and it will be noticed that bythe employment of the foot, L, brace, M, and bar, K, the weight ismainly supported directly by the pole.

The derrick can be easily attached to any pole and besides serving forthe purpose for IOC which it is'primarily designed will be found veryuseful by linemen in hoisting up wire, cross pieces, &c.

I am aware that changes in the form and proportion of parts and detailsof construction of the embodiment of my invention herein shown anddescribed can be made without departing from the spirit or sacrificingthe advantages of my invention and I therefore reserve the right to makesuch changes and alterations as fairly fall within the scope thereof.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is

1. A derrick consisting of an upright bar or standard provided withmeans for attachment to a pole or support, an arm attached to said barand arranged to support a block and tackle, and a foot carried by saidupright bar and adapted to rest on top of the poleto which said uprightis attached, substantially as described.

2. The combination witha derrick consisting of an upright provided witha laterally projecting arm, adapted to support a block and tackle, of astrap fitted in an eye or loop attached to the upright and adapted toencircle a pole to bind the upright thereto, subslantially as described.7

3. A derrick consisting of an upright having a series of spurs on oneface and an eye or loop, designed to receive astrap, on its other face,a laterally projecting arm attached to the upright and adapted tosupport a block and tackle, and a foot carried by the upright andadapted to rest on the top of a pole to which the upright may beattached, substantially as described.

at. A derrick consisting of an upright provided with means forattachment to a pole and with the intermediate twist, I, and having itsupper portion bent to form a laterally projecting arm adapted to supporta block and tackle, substantially as described.

In testimony whereof I affix my signature in presence of two witnesses.

WILLIAM A. ROSS. \Vitnesses:

R. O. MONTGOMERY, S. G. GILLAM.

